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Tweak Span encoding.

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Failing to fit `base` is more common than failing to fit `len`.
This commit is contained in:
Nicholas Nethercote
2019-02-14 19:17:07 +11:00
parent 428943cc29
commit ff94feabc2
1 changed files with 3 additions and 3 deletions
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src/libsyntax_pos/span_encoding.rs
+3 -3
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@@ -74,12 +74,12 @@ pub fn data(self) -> SpanData {
// Tag = 0, inline format.
// -------------------------------------------------------------
// | base 31:8 | len 7:1 | ctxt (currently 0 bits) | tag 0:0 |
// | base 31:7 | len 6:1 | ctxt (currently 0 bits) | tag 0:0 |
// -------------------------------------------------------------
// Since there are zero bits for ctxt, only SpanData with a 0 SyntaxContext
// can be inline.
const INLINE_SIZES: [u32; 3] = [24, 7, 0];
const INLINE_OFFSETS: [u32; 3] = [8, 1, 1];
const INLINE_SIZES: [u32; 3] = [25, 6, 0];
const INLINE_OFFSETS: [u32; 3] = [7, 1, 1];
// Tag = 1, interned format.
// ------------------------